commit 50876bfac7eba0c78d5bcc1d279755a314967fff
author Tony <twickham@google.com> Wed Sep 19 23:09:14 2018 -0400
committer Tony <twickham@google.com> Thu Nov 01 17:26:31 2018 -0400
tree 8e2c7a0e81aa507d5faa5f06519c0ead8c7fa697
parent f107c9ef6ddc59763c1b60507c6ea7b09ecee8f9

FeatureFlag: quick scrub is now quick switch

- Scale down current task and translate it to the left
- Translate previous task in from the left
- This is a toggle; quick switch again returns to the first task

Currently this is implemented by repurposing onQuickScrub(progress) to update the positions
of the first two pages. This makes tracking velocity a bit difficult; if we want to go down
this path in the long run we should probably track velocity properly on MotionEvents.

Change-Id: I4445b5f08b6e88e71cbb5e30b1f1d45c5f1edc68

src/com/android/launcher3/PagedView.java

diff --git a/src/com/android/launcher3/PagedView.java b/src/com/android/launcher3/PagedView.java
index 36b9e97..9470635 100644
--- a/src/com/android/launcher3/PagedView.java
+++ b/src/com/android/launcher3/PagedView.java
@@ -625,6 +625,10 @@
         mMaxScrollX = computeMaxScrollX();
     }
 
+    public int getMaxScrollX() {
+        return mMaxScrollX;
+    }
+
     protected int computeMaxScrollX() {
         int childCount = getChildCount();
         if (childCount > 0) {
@@ -640,6 +644,10 @@
         requestLayout();
     }
 
+    public int getPageSpacing() {
+        return mPageSpacing;
+    }
+
     private void dispatchPageCountChanged() {
         if (mPageIndicator != null) {
             mPageIndicator.setMarkersCount(getChildCount());

src/com/android/launcher3/config/BaseFlags.java

diff --git a/src/com/android/launcher3/config/BaseFlags.java b/src/com/android/launcher3/config/BaseFlags.java
index 64b5652..e5a8a01 100644
--- a/src/com/android/launcher3/config/BaseFlags.java
+++ b/src/com/android/launcher3/config/BaseFlags.java
@@ -22,9 +22,6 @@
 import android.content.SharedPreferences;
 import android.provider.Settings;
 
-import androidx.annotation.GuardedBy;
-import androidx.annotation.Keep;
-
 import com.android.launcher3.Utilities;
 
 import java.util.ArrayList;
@@ -32,6 +29,9 @@
 import java.util.SortedMap;
 import java.util.TreeMap;
 
+import androidx.annotation.GuardedBy;
+import androidx.annotation.Keep;
+
 /**
  * Defines a set of flags used to control various launcher behaviors.
  *
@@ -87,6 +87,9 @@
     // trying to make them fit the orientation the device is in.
     public static final boolean OVERVIEW_USE_SCREENSHOT_ORIENTATION = true;
 
+    public static final TogglableFlag QUICK_SWITCH = new TogglableFlag("QUICK_SWITCH", false,
+            "Swiping right on the nav bar while in an app switches to the previous app");
+
     /**
      * Feature flag to handle define config changes dynamically instead of killing the process.
      */